Hydrocarbon-lamp.



No. 705,582. Patented luly 29, |902.

W.4 HA-WKS. HYDBOCAHBUN LAMP. (Applczion` filed Oct. 17, 1900.) (Nomaden) Tm: nonms nous co. mom-mwa.. WASHINGTON, n4 c.

" f NITED STATES PATENT @PRIOR WILLIAM I-IAwKS, OR CHICAGO, ILLINOIS, ASSIGNOR ATooI-IICAGO SOLAR LICI-IT COMPANY, OF CHICAGO, ILLINOIS,A CORPORATION OF ILLINOIS.

HYoRooARBON-,LAM P.

SPECIFICATION forming part of' Letters Patent No. 705,582, dated July 29, 1902.

Appunti@ flied october 17, 1900; Serial Np. 33,379. (No model.)

To a/Z whom, it may concern:

Be it known that I, WILLIAM HAWKS, a citi- Zen of the UnitedStates, residing at Chicago,

in the county of Cook and State of Illinois, have invented certain new and useful Improvementsin Hydrocarbon-Lamps, of which the following is a specification.

The object of this invention is theprovduc spending parts throughout the several views. A

In the construction ofthis lampIy provide the body portion A, in thisinstance substantially of globular form, having the base A', upon which the la mp is supported. The globular body portion A is hollow, the interior being a receptacle for containing hydrocarbon and air under pressure. An air-valve B provides means for filling the lamp, also for placing the hydrocarbon under air-pressure, the tube B', to which an air-pump may be connected, communicatingr with the interior of the lamp-body.

C is a hydrocarbon feed-pipe extending vertically through the lamp-body to a point near the bottom thereof. This feed-pipe is continued at its upper end in the tube C', which conducts hydrocarbon upward to the needlevalve, to be later described. A

D is the needle-valve casing, formed inte gral with said hydrocarbon-pipe C at the upper end thereof. The rear end of said casing is internally screw-threaded at D to receive the needle-valve stem'and externally screw-threaded for the stuffing-box D2.

The casing D extends-forward in the generating- A generatingcup D5, containing a quantity of mineral wool, has a loop D6 for surrounding the sleeve D3, whereby the cup is supported` beneath said sleeve,y and may be slid along the same to apply heat to, it at any 4desired point in startingthe lamp. E is a "mixing-tube extending downward from the discharge-tip D? of said needle-valve casing D to a point near the body portion A of the lamp, turning thence upward, and at this upturned end is iitted with the removable burner-tube E. This burner-tube has the usual screw-clip E2 for the mantle-supporting arm; E3. In the upper end of the burner- .tube E', I have placed a screen F, composed of a spiral coil or roll of two sheet-metal strips F' and F2, the former being flat and the latter crimped. I have obtained results very favorable in the use of this form of screen, not only in its greater durability over the -wire screen formerly used, butin an increased steadiness in the light produced.

The upper horizontal portion of the mixing-tube E is screw-threaded to receive the mixing-bell `G r,.th e collar G' oflwhich bell is internally screw-threaded to correspondwith thescrew-threads just mentioned on the mixing-tube E. The bell' G is hollow and is closed except for the perforationsGr2 in its `forwardlinner) face near the periphery of the `bell Cr and the opening in its-center for the admission of the discharge-tip D4'of the needle-valve casing D. The screw -thread mounting of the mixing-bell G upon the mix- .ing-tubepermits of a movement of-said bell toward or from the end of the discharge-tube to vary the quantity of air which is mixed with the hydrocarbon gas during the operation ofthe lamp. y

A needle-valve stem I-I is adapted to be inserted Within the needle-valve casing D and the generating-sleeve D3. Its enlarged rear portion H isv screw-threaded tocorrespond with the internal screw-threads of the needle- `valve casing D, whereby it is moved forward and back to Open and close the needle-valve. Forward of the enlarged screw-threaded porsion I-I the needle-valve stem is screw-threaded for the greater portion of its length. This last-mentioned screw-threaded portion H2 is of a diameter but slightly less than the intor- IOO nal diameter of the sleeve D3, so that the nee- Y (lle-valve Vstem H will fit the sleeve D3 rather snugly, leaving the thread depressions on the valve-stem H as the only space for the passage of the hydrocarbon and gas. This space is so slight that the generation of gas from the liquid is rendered almost instantaneous. At its extreme forward end the needle-valve stem H is provided with the conical closingface H3, adapted to enter the central perforation of the discharge-tip D4 and with thencedle-point H4 for cleaning the small dischargeopening of said tip. The needle-point H4 is formed by drilling into the forward end ofthe needle-valve stem H and inserting into the hole thus formed a piece of wire, securing the latter in its position by solder or other suitable means. At its rear end the needle-valve stern is provided with the usual hand-button H5.

In operation hydrocarbon isintroduced into the lamp-body through the air-valve B. After a sufcient quantity of the liquid has been poured into the receptacle an air-pu mp is connected with the tube B of the air-valve and the liquid in the receptacle placed under airpressure. The pressure of the air in the upper portion of the receptacle A drives a column of the hydrocarbon upward in the pipe C adjacent to the needle-valve, filling the screw-thread spaces in the needle-valve stem within the sleeve D3. A quantity of alcohol is placed within the generating-cup D5 7 said l cup slid along the sleeve D3 to the desired point, and the alcohol ignited. When the hydrocarbon Within the sleeve is heated to such a degree that it assumes the form of a gas, the needle-valve is opened and the gas in the casing discharged under the existing pressure through the needle-valve opening into the mixing-bell Gr. The force of the inoomingjet is sufficient to carry said gas downward in the mixing-tube E and upward to the burnertube throughthe screen F in said tube and in the mantle where it is consumed.

I claim as my invention- In a hydrocarbon-lamp, in combination, a needle valve casing having a generatingsleeve a needle-valve stem fitting said sleeve snugly and being screw-threaded to form a channel for the passage of the hydrocarbon and gas within said sleeve, said stem being provided with a Wire point of uniform diameter; a mixing-tube; and a mixing-bell provided with a perforated forward face having a central opening to receive the end of the needle-valve casing, the rear face of said bell being provided with a collar having a screwthread connection with mixing-tube, to provide for an adjustment of said bell to and from the valve-casing.

WILLiAM HAWKS.

Witnesses:

GEO. L. OHIVDAHL, L. L. MILLER. 

